[DavidP]

Hi, I purchased a 50cc mini dirt bike for my son and a 50cc mini quad for my daughter and on their first outing they have developed problems.

The quad is a 2 stroke and has lost power and has black oil leaking from the engine.

The mini dirt bike is also a 2 stroke and has lost power, we are having to push the bike to start it moving, the bike was getting used in a field with fairly wet weather.

Could someone help me out?

Thanks

David

 

[CAM2]

your supposed to break the engines in gently for 4 tankfuls of fuel.....Until then youll develop problems.......Try changing the sparkplugs.NGK BM6A

 

[DavidP]

Thanks, I have ordered spark plugs.

 

[DavidP]

What could be causing the oil leak at the exhaust manifold?

Thanks

 

[CAM2]

What could be causing the oil leak at the exhaust manifold?

Thanks

Running it with too much oil per gallon....break-in is supposed to be 25/28:1 ratio according to the chinese and is too much in my eye...I go 32:1...After you burn 4 tankfuls switch the mix for 42:1 and itll run cleaner...........Make sure you get a couple sparkplugs for each..........

 

[DavidP]

Thanks for your help